On the blog Boing Boing, Mark Frauenfelder posted the surveillance video below which captures a female shoplifter in the act while her family casually shops nearby.

You can compare her technique with the woman in an earlier Deceptology post of another video of a skillful thief using her skirt, at Shoplifting using a long skirt>>Not sure of the exact method she's using, but it only takes the woman below nine seconds to complete her illegal transaction (from :06 spitting in hand to :15 looking normal again.)